OpenTechnical

OT-2026-000025685

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000025685) never changes.

Identity and time

Publication numberOT-2026-000025685 · never reused
Internal UUID01a0ae71-9bc9-73da-8f56-88006cbc8246 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:56.183170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025685
StatusPUBLIC

Content hashes

Canonical text608cfb75414bf3dfdc2722162b0e6ce17f3b83b639c31d8516fe7cbc8e5f9106
Markdownbe99b1d7a65fb11331a746ee9135a149c3084087c613450972f4db36b2ab91ed
PDF
Publication page8e5ba463f7e7e9ac6eff35192d6ff7a64f1e05a718ee5541d8ccbc76d58dbfd6
Manifestfdf8ef84354bfff12b29da0fa75a0e88822c17c9d7105d598cd92c4b3e6b071c

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature6BOhKNTz5sWvCHyT206r59pb9F2GvXOzpHVJ8ubs6Mr32Ra/rRHFVqyf294TDJ/JR18wNFTHefgqxvUCzuKiBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:46:53.750744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025685
observed 8e5ba463f7e7e9ac6eff35192d6ff7a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:53.730932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025685/manifest.json
observed fdf8ef84354bfff12b29da0fa75a0e88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:53.706707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025685/publication.md
observed be99b1d7a65fb11331a746ee9135a149...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:53.687826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025685/publication.txt
observed 608cfb75414bf3dfdc2722162b0e6ce1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.